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Method and apparatus for configuring rrc connection establishment cause for relay terminal in idle state in wireless communication system

a wireless communication system and relay terminal technology, applied in the field of wireless communication, can solve the problems of restricting the ability of a network to treat the remote ue as a separate device, and uu connection being non-useful directly

Active Publication Date: 2019-08-29
LG ELECTRONICS INC
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AI Technical Summary

Benefits of technology

The text is saying that the concept of "proximity-based services" can be used efficiently to connect a user's phone to a network. This can be useful in situations where there is no pre-existing wireless infrastructure available, or to supplement existing infrastructure in areas where there are no cell towers.

Problems solved by technology

This model restricts the capability of treating the remote UE as a separate device by a network and an operator (i.e., for charge and security).
This may be particularly useful in wearable owing to the use pattern proximate to a smart phone of a user as well as form factor limit (e.g., battery size limit) which makes the Uu connection be non-useful directly.

Method used

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  • Method and apparatus for configuring rrc connection establishment cause for relay terminal in idle state in wireless communication system
  • Method and apparatus for configuring rrc connection establishment cause for relay terminal in idle state in wireless communication system
  • Method and apparatus for configuring rrc connection establishment cause for relay terminal in idle state in wireless communication system

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Embodiment Construction

[0024]FIG. 1 shows 3GPP LTE system architecture. Referring to FIG. 1, the 3GPP long-term evolution (LTE) system architecture includes one or more user equipment (UE; 10), an evolved-UMTS terrestrial radio access network (E-UTRAN) and an evolved packet core (EPC). The UE 10 refers to a communication equipment carried by a user. The UE 10 may be fixed or mobile, and may be referred to as another terminology, such as a mobile station (MS), a user terminal (UT), a subscriber station (SS), a wireless device, etc.

[0025]The E-UTRAN includes one or more evolved node-B (eNB) 20, and a plurality of UEs may be located in one cell. The eNB 20 provides an end point of a control plane and a user plane to the UE 10. The eNB 20 is generally a fixed station that communicates with the UE 10 and may be referred to as another terminology, such as a base station (BS), an access point, etc. One eNB 20 may be deployed per cell.

[0026]Hereinafter, a downlink (DL) denotes communication from the eNB 20 to the...

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Abstract

In the performance of a proximity-based services (ProSe) user equipment (UE)-to-network relay operation, when a remote UE needs to transmit control / user plane data to a network, a relay UE may be in a radio resource control (RRC) idle state. At this time, the relay UE receives an RRC connection establishment cause from the remote UE, and performs an RRC connection establishment procedure for the ProSe UE-to-network relay of the remote UE on the basis of the received RRC connection establishment cause.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is the National Stage filing under 35 U.S.C. 371 of International Application No. PCT / KR2017 / 012714, filed on Nov. 10, 2017, which claims the benefit of U.S. Provisional Application No. 62 / 420,562 filed on Nov. 11, 2016, the contents of which are all hereby incorporated by reference herein in their entirety.BACKGROUND OF THE INVENTIONField of the Invention[0002]The present invention relates to a wireless communication and, more particularly, to a method and apparatus for configuring radio resource control (RRC) connection establishment cause for a relay user equipment in an idle mode in a wireless communication system.Related Art[0003]3rd generation partnership project (3GPP) long-term evolution (LTE) is a technology for enabling high-speed packet communications. Many schemes have been proposed for the LTE objective including those that aim to reduce user and provider costs, improve service quality, and expand and improve...

Claims

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Application Information

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IPC IPC(8): H04W76/27H04W88/04H04W92/18H04W76/14
CPCH04W76/27H04W76/14H04W92/18H04W88/04H04W68/00
Inventor LEE, YOUNGDAELEE, JAEWOOKLEE, HANUL
Owner LG ELECTRONICS INC
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